package com.skycode.servlet;

import com.skycode.bean.NewsBean;
import com.skycode.dao.NewsDao;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;


@WebServlet("/newsEdit.jsp")
public class NewsUpdateServlet extends HttpServlet {
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("UTF-8");
        String user = (String) req.getSession().getAttribute("User"); // 获取会话
        if (user == null || user.equals("")) {
            resp.sendRedirect("login.jsp");
            return;
        }
        String newsTitle = req.getParameter("upd_NewsTitle");
        String newsContent = req.getParameter("upd_NewsContent");
        int newsId = Integer.parseInt( req.getParameter("newsId"));
        NewsBean newsBean = new NewsBean();// 实例化新闻对象
        newsBean.setNewsID(newsId);
        newsBean.setNewsTitle(newsTitle);// 设置新闻标题
        newsBean.setNewsContent(newsContent);// 设置新闻内容
        newsBean.setAdminName("user");// todo登录管理员的名字
        NewsDao newsDao = new NewsDao();// 实例化 新闻Dao
        int result = newsDao.update(newsBean);
        if (result>0) {

            resp.sendRedirect("news.jsp");// 参数是相对网址
        }else {
            req.setAttribute("msg","更新失败");// 错误页面显示的内容
            req.setAttribute("url","news.jsp");// 显示错误信息后要跳转的页面
            req.getRequestDispatcher("WEB-INF/error.jsp").forward(req, resp);
        }
    }
}
